My son recently bought an older house with weil mclain gas fired boiler and baseboard heat. The system had been drained. We tried filling the system using city water and could not complete the fill - some air came out of the bleeders, but then quit, and no water was seen.
All valves are open, but the pressure in the system is not high enough to drive water through. The pump was not operating.
The fill line has a cylindrical device in-line (in, out, drain) with no adjustment that I assumed was an one-way valve to prevent back bleed (why does it have a drain?).
The boiler has an expansion tank, and a large red device on top of the boiler that has an adjustment (handle or pointer), that I assume must be a regulator - but I don't know how to adjust.
How can I get water into the system? I previously pressurized with air to test for leaks.
Thanks!
All valves are open, but the pressure in the system is not high enough to drive water through. The pump was not operating.
The fill line has a cylindrical device in-line (in, out, drain) with no adjustment that I assumed was an one-way valve to prevent back bleed (why does it have a drain?).
The boiler has an expansion tank, and a large red device on top of the boiler that has an adjustment (handle or pointer), that I assume must be a regulator - but I don't know how to adjust.
How can I get water into the system? I previously pressurized with air to test for leaks.
Thanks!